Improved blind-pastening



@with tat-2a gatznt Affiti.

EDWARD A, GRAVANTRE, o E NEWARK, NEW JERSEY, AssieNoR To ALFRED GEAVANTRE, 0E NEWYOREN. Y. Y

I Letters Patent No. 7i,135, dated November 19, 1867.

IMPEOYBD BLIND-FASTENING.

TO'ALL WHOM IT MAY CONOERN:

Be it known that I', EDWARD A. CHAVANTRE, of Newark', in the county of Essex, and State of New Jersey, have invented, made,'and applied Ato use a certain new and useful'mprovement in Blind-Fastenings; and I do hereby declare the following to be a full, clear, and exact description of the said invention, reference being had to the annexed drawing, making part of this specification, whereini y Figure 1 is a plan of the blind-hinge with the window-casing in section.

Figure 2 is a side view of the upper hinge; and

l Figure 3 is 'a similar view of the bottom hinge, part of the window-casing being in section, and also the plates of the hinge. y

Similar marks` of reference denote the same parts.

The object of my invention is to hold the blind open, or partially open, and to allow ofits being closed without opening the Window,

My invention consists in a sliding spring-bolt passing through the window-casing, in combination with-a notched hub to the moving part ofthe hinge, so that-"when the spring-boltis `Withdrawn the blind and hinge are free to move, and when said bolt is projected, the hinge will be locked, so as to hold the blind open, closed, or at any desired intermediate point. And I make use of a spring applied to the blind in such a manner that the blind will be closed by it when the bolt is loosed ofits hold upon the moving hinge of the blind,-thereby allowing the blind to'be closed without opening the window. v v i n Y In the drawing, a represents a portion of the window-frame, of any desired character. is the blind, e' the stationary part, and e the moving part of the upper hinge, the latter being attached to the blind. is a spring;1 coiled in the case g, and attached at one end to the hinge-pin z', and the other -end actingagainst the blind, toA close the same when not-otherwise moved or held. The hinge at the lower part of the bind is made with the fixed portion c attached to the casing, and the moving portion l attached to the blind.' Through the plateof the hinge k passes the shank m of the bolt n, said bolt n taking into notches in the hub o of the'hinge Z, to retain the blind open, shut, or at any intermediateV point, according to the position of the saidnotches.V VThe lower part of this bolt n, enters into a vertical groove or notch in the hub of the hinge portion Ic, so a'sgto be sustained and strengthened by the same. The shank m of the bolt n passes through the plate c, and isl formed with a shoulder, against which the coiled springl p acts, the other end of said spring taking the 'plate q. 1' isa' 1atch-bar and knob, the former being lunited to the shank m by a joint, and s is a plate on theinside of the window-frame or casing. In the bar 1 are the notches 2 and 3, standing in opposite directions, so that when the notch2 is employed, the bolt n Will be latched back and be inoperative, but when the bar 7' israised, thel notch 3 holds the bolt forward, so that said boltn cannot be pressed hack; hence said bolt becomes a secure fastening for `the blind or shutter. y y

What I claim, and desire to secure by Letters Patent, is-

- The bolt n, taking the notches of the hub of the hinge, in combination vwith the latch-bare', jointed to the shank m of said bolt n, as and for the purposes set forth.

Dated August 6, 1867. l

EDWARD A. GHIUTANCIRE.

Witnesses: I

CEAS. H. SMITH, GEO. D. WALKER.

` En if., v v 

